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Poster: A/V Geek Skip Date: Jun 4, 2005 3:07am
Forum: movies Subject: Re: there are many many other public domain movies and TV shows

Also, it's faster to do it this way - ripping MPEG files from the DVD can be pretty zippy with a fast DVD drive.

Before going through this process and uploading, send me an email (skip@avgeeks.com) with the title of the film, just to make sure that it is public domain. You can't always go by other PD websites - those sites may be willing to take chances on films that are in a grey area, where the IA won't. Also changes in copyright laws have made some films that were previously considered PD (mostly foreign works) that are now under copyright.

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Poster: Madhavananda Date: Jun 4, 2005 6:24am
Forum: movies Subject: Re: there are many many other public domain movies and TV shows

Also, if the DVD you're taking it from has something besides the original footage, pay attention to removing that and only leaving in the original footage, since anything else beyond that may be copyrighted.

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Poster: A/V Geek Skip Date: Jun 4, 2005 6:44am
Forum: movies Subject: Re: there are many many other public domain movies and TV shows

This is correct. Extra materials, colorization of materials, even extra footage added to a film can qualify for new copyrights.

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Poster: pdmdb.org Date: Jul 1, 2005 7:23am
Forum: movies Subject: Check for hidden watermarks?

Does anybody know of a way to check for hidden watermarks in movies? Liketelevision.com claims to use hidden watermarks in their downloadable films and that it's against there usage policy to use them for anything other than personal use.

I was wondering if DVD producers did the same thing? All of these dollar DVDs containing public domain material are showing up, but they all claim to have a copyright on the material. Is there a way to check that they aren't including hidden watermarks or should this even be a concern?

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Poster: Administrator, Curator, or StaffRob Pascual Date: Jul 2, 2005 4:22am
Forum: movies Subject: Re: Check for hidden watermarks?

There have been some DVD watermarking techiniques developed, but they seem to be mostly used for screeners sent out to film previewers. In low print runs like that, they can make individual watermarks to track down who leaked a movie. In large pressings however, there is no (economically viable) way to encode unique watermarks. It is possible that someone would encode a static watermark across an entire pressing, but I don't really see what this would accomplish, so I doubt it is a concern.

There are also very successful audio watermarking techinques, usually based on a spectrogram, that can persist through lossy encodings. However, these are also mainly used for CD previews.

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Poster: moxey Date: Jun 4, 2005 4:00am
Forum: movies Subject: Re: there are many many other public domain movies and TV shows

thanks to all you for your help.
and an email has been sent